chore: Archive all pending OpenSpec proposals

Force archive the following proposals:
- add-audio-device-selector (complete)
- add-embedded-backend-packaging (19/26 tasks)
- add-flexible-deployment-options (20/21 tasks)

New specs created:
- audio-device-management (7 requirements)
- embedded-backend (8 requirements)

Updated specs:
- transcription (+2 requirements for model download progress)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

openspec/changes/archive/2025-12-22-add-flexible-deployment-options/tasks.md

@@ -0,0 +1,36 @@
+# Tasks: Add Flexible Deployment Options
+
+## 1. Portable Extraction Path
+- [x] 1.1 Update `client/package.json` - Add `unpackDirName: "Meeting-Assistant"` to portable config
+
+## 2. Configuration Schema for SQLite
+- [x] 2.1 Update `client/config.json` - Add `database.type` field (default: "mysql")
+- [x] 2.2 Update `client/config.json` - Add `database.sqlitePath` field (default: "data/meeting.db")
+
+## 3. Backend Configuration
+- [x] 3.1 Update `backend/app/config.py` - Add `DB_TYPE` setting
+- [x] 3.2 Update `backend/app/config.py` - Add `SQLITE_PATH` setting
+- [x] 3.3 Update `backend/run_server.py` - Pass `DB_TYPE` and `SQLITE_PATH` to environment
+
+## 4. Database Abstraction Layer
+- [x] 4.1 Refactor `backend/app/database.py` - Create `init_db()` dispatcher function
+- [x] 4.2 Implement `init_sqlite()` - SQLite connection with row_factory
+- [x] 4.3 Implement `init_mysql()` - Keep existing MySQL pool logic
+- [x] 4.4 Create unified `get_db_cursor()` context manager for both backends
+- [x] 4.5 Add SQLite table creation statements (convert MySQL syntax)
+- [x] 4.6 Add thread lock for SQLite connection safety
+
+## 5. Build Script Integration
+- [x] 5.1 Update `scripts/build-client.bat` - Add `--database-type` parameter parsing
+- [x] 5.2 Update `scripts/build-client.bat` - Add `update_config_database` function
+- [x] 5.3 Update help message with new parameter
+
+## 6. Testing
+- [x] 6.1 Test SQLite mode - Create meeting, query, update, delete
+- [x] 6.2 Test MySQL mode - Ensure backward compatibility
+- [ ] 6.3 Test portable extraction to `%TEMP%\Meeting-Assistant` (requires Windows build)
+
+## 7. Documentation
+- [x] 7.1 Update DEPLOYMENT.md with SQLite mode instructions
+- [x] 7.2 Update DEPLOYMENT.md with --database-type parameter
+- [x] 7.3 Update DEPLOYMENT.md with portable extraction path info